2020-05-05
GeoHash
In 2008, Gustavo Niemeyer came up with Geo Hash, representing an area on a map as a string of characters. The longer the string, the more accurate/less area.
https://en.wikipedia.org/wiki/Geohash
Interactive map (select “GeoHash” in the upper right corner) http://missinglink.github.io/leaflet-spatial-prefix-tree/
Go library: https://github.com/mmcloughlin/geohash
